add 'allrows' to MatGetSubMatrices_MPIBAIJ_local() to avoid calling nonscalable ISGetIndices()

Hg-commit: 4f6c9b1ff2e5d7832f9e1a1716751b1cb7e0a64e

add special case "allcolumns" to MatGetSubMatrices_MPIBAIJ_Local()
for scalability. Remove non-scalable colmap. See changeset 20197:1093ea5868ec on MPIAIJ

Hg-commit: abe18fb0e4d548c12fe822dc2a9d43a1

add special case "allcolumns" to MatGetSubMatrices_MPIBAIJ_Local()
for scalability. Remove non-scalable colmap. See changeset 20197:1093ea5868ec on MPIAIJ

Hg-commit: abe18fb0e4d548c12fe822dc2a9d43a1bcc36153

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merge from the release

Hg-commit: 003b6fef9eb701c5cb4a9866830e909adea15bf5

merge from release with minor edit on isblock.c

Hg-commit: 70fe517ef28a01974b3bd58d45be5b1ed8f022e8

merge

Hg-commit: 1e229776bfd44f4b459456504b3110137e0481a8

more updates on PetscTable

Hg-commit: 81961d54ed644345546c0aa2c889e2474eb971d1

merge from 3.2

Hg-commit: 136b1a81df3a1c609acad95fbce77ebeead8502d

fixes to allow runs without ctable
changed default values for machine epsilon and its sqrt

Hg-commit: c636d6b71ea127a1acb84fe0383b490d3b14f6a2

compile fix

Hg-commit: a8655cef1b67103aa487c03663d18c699bef7acd

compile fix

Hg-commit: eb43cbb0cd1a26a500f9107f8d020d36d8ecdc56

forgot to regist for bstrm and sbstrm

Hg-commit: 8ac6c3df46db844bfcb5f360da123815954211b0

added MatRegisterBaseName() so that setting matrix type to BAIJ for example doesn't cause reset of matrix

Hg-commit: a4b44c64cb7a86f56eef479dfdd6ba26d266b203

fix warnings

Hg-commit: 71146481762a9a75843eb08afc66fa4e4d847521

some c syntax fixes

Hg-commit: 5cf8867b435d67a514b52dba1cbaf6c5c6eac1ab

c/c++ compile fixes for sbstream

Hg-commit: 322ba9af662cdda51f889706b2f985501694c70c

add sbstream format - for symmetric matrix tuning.

Hg-commit: 464c0a3c7213ffff467aef837bf79b19dc87e79a

make sbaij matrix ignore lower triangular values set into matrix by default instead of generating an error.

Hg-commit: e7acce0c00581d51a4c92022b307d38d0caa49ac

updates to docs on Hermitian vs non-Hermitian symmetry

Hg-commit: fbe127677dc8c0ac83300394584bd88702ba1f0c

API Change:[Mat] Remove iscopy,reuse from MatGetDiagonlBlock()

* Now it should return a borrowed reference.

* MATDENSE was updated to cache the the diagonal block

Hg-commit: dbddbea75f68dca2821e78

API Change:[Mat] Remove iscopy,reuse from MatGetDiagonlBlock()

* Now it should return a borrowed reference.

* MATDENSE was updated to cache the the diagonal block

Hg-commit: dbddbea75f68dca2821e7818ebd56b2b79bbbaf9

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MatDestroy(): cleanup the MatPreallocated() hack, fix all matrix types

Hg-commit: 8b12afa1931080f94d5efc78eba78580324579e8

convert some c++ syntax to c

Hg-commit: e6c5fa377d698402fe35d535ea950bfe6cf9e9b0

adding missing lower triangular entries in diagonal blocks of MatConvert_MPIAIJ_MPISBAIJ()
bugfix of MatIncreaseOverlap_SBAIJ()

Hg-commit: 2b3dab7dd0b21d82f7ebf126a86ea89f5f29523d

updated PetscTableDestroy() to new paradigm

Hg-commit: ac57dd2a39d9e719ebeec1c5179c4469b71a8d21

Fix a few Destroy-related artifacts from packages that weren't built on Barry's machine.

Hg-commit: e55c7066b74bb646d50fb615071c1d89e95eede4

commit after merge, some manual merges

Hg-commit: a60db41ebcbbb90ab0d02727666a69b6d3ee88a0